[rules-users] Usage of Drools in a RCP project

[Gaurav2007]

i am also working in same technology i am not able to use service of one
plug-in from another in following cases :
1) export the required package of dependent plug-in,
2) add all the required jars in classpath from runtime tab of mainfest.mf
file of your plugin.
3) in run time configuration of application required plug-in is not
selected.



gurks wrote:
> 
> I'm working on a RCP project and now want to integrate Drools. There are
> two plugins: CORE and UI.
> The initialization of Drools is done in a Manager class in the core
> plugin. The same plugin also has a class named Service. This class should
> be imported in a DRL-file. The Manager is first called in the UI plugin
> but don't think that's the problem. The Drools jars are placed in its own
> plugin and the other two plugins are augemnted with the dependency needed.
> 
> When I try to initialize the ruleBase I get the following exception:
> 
> org.drools.rule.InvalidRulePackage: Unable to resolve ObjectType 'Service'
> : [Rule name=Your First Rule, agendaGroup=MAIN, salience=0, no-loop=false]
> Rule Compilation error : [Rule name=Your First Rule, agendaGroup=MAIN,
> salience=0, no-loop=false]
> 	at/mcw/jdent/services/core/persistent/Rule_Your_First_Rule_0.java (2:55)
> : Only a type can be imported. test.core.persistent.Service resolves to a
> package
> 	at/mcw/jdent/services/core/persistent/Rule_Your_First_Rule_0.java (7:342)
> : $serviceName cannot be resolved
> org.drools.compiler.ImportError at 17a99
> 	at org.drools.rule.Package.checkValidity(Package.java:408)
> 	at
> org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:288)
> ...
> 
> I don't know why Drools does not find my Service class. It's in the same
> plugin as the manager and should be visible to it.
> 
> Could anybody give me an advice how I can integrate Drools into my RCP
> project correctly.
> 
> Thanx, gurks
> 

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